On February , the billing date, Carol Ann had a balance due of $ on her credit card. Her bank charges an interest rate of 1.25% per month. She made the transactions described in the table during the month. Feb. Charge: Art supplies $28.44 Feb. Payment $90.00 Feb. Charge: Flowers delivered $65.84 Feb. Charge: Music CD $12.21 a) Determine the finance charge on March , using the previous balance method. b) Determine the new balance on March .